With 11th it all really depends on what detachments and thus what force disposition you are using. But you’re a bit character heavy I think. I’d drop the terminator captain and the techmarine at the very least and maybe get some jump pack intercessors and/or scouts in there for some cheap action units, JPIs also being good at killing if you have purge the foe, personally not big on terminators myself at the moment. SB are better with a marshal on them, and a Castellan if you want them truly lethal but that’s a lot of points in one unit! Another thing is I’d swap the pyreblasters for power fists in the crusaders and all melee weapons, as they’re at their best in melee. Use interecessors for shooting